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<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:layout_marginBottom="8dp"
        android:orientation="horizontal"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <TableLayout
            android:layout_width="300dp"
            android:layout_height="match_parent"
            android:gravity="center">

            <TableRow
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <Button
                    android:id="@+id/button10"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Button1" />
            </TableRow>

            <TableRow
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <Button
                    android:id="@+id/button11"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Button3" />
            </TableRow>

        </TableLayout>

        <TableLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center">

            <TableRow
                android:layout_width="match_parent"
                android:layout_height="match_parent">

                <Button
                    android:id="@+id/button13"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Button4" />
            </TableRow>

            <TableRow
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <TableRow
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <TableRow
                android:layout_width="match_parent"
                android:layout_height="match_parent" />
        </TableLayout>
    </LinearLayout>
</android.support.constraint.ConstraintLayout>